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* bus: Change bus parameter in config_spi/config_i2cKevin O'Connor2019-04-041-1/+1
| | | | | | Be explicit when using an spi_bus vs i2c_bus in the parameter name. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* i2ccmds: Pass the i2c address as a 7-bit number (0-127)Kevin O'Connor2019-01-071-4/+2
| | | | | | | | | | | | | | | | The sam3 i2c code and the linux code use a 7-bit i2c address, while the avr, lpc176x, and samd21 i2c code uses an 8-bit address with the least significant bit always zero. A similar issue occurred in the host code (sx1509.py and replicape.py use 7-bit addresses while uc1701.py and mcp4451.py use 8-bit addresses). Consistently use 7-bit addresses in all the code. This breaks compatibility between host and mcu software, so make a change to the config_i2c command to force users to synchronize software updates. This also breaks common Smoothieboard configs, so update the mcp4451 code to validate the i2c_address. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* i2ccmds: Validate the i2c addressKevin O'Connor2018-11-301-1/+4
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* i2ccmds: Minor whitespace changesKevin O'Connor2018-11-231-1/+3
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* Add generic i2c interfaceFlorian.Heilmann2018-10-271-0/+76
Signed-off-by: Florian Heilmann <Florian.Heilmann@gmx.net>